About Slackforce (Unreleased)
This App has three main functionalities. First you can measure the pretension of a slackline from the sound you get after slapping the line with your finger. It is possible to use the microphone of your phone to record the sound and get the frequency automatically with audio processing.
Second you can calculate the Forces on the Line at static conditions from the geometric properties of the line. It is also possible to calculate the pretension if the stretch behaviour of the line is known.
Third you can simulate the movement of the line and the forces involved in dynamic moves like bouncing or jumping.
Note that there might be errors in the calculations. Never only trust the calculated values and always consider if the values make sense. The creator of the App is not responsible of any harm resulting from the use of the calculated values.